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The simplistic Salas low voltage shunt regulator
The simplistic Salas low voltage shunt regulator
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Old 7th November 2009, 01:39 AM   #1501
Salas is offline Salas  Greece
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The simplistic Salas low voltage shunt regulator
Quote:
Originally Posted by Tham View Post
Any suggestion where I should start troubleshooting?
Small transistors first.
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Old 7th November 2009, 01:47 AM   #1502
Tham is offline Tham  Malaysia
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Will do that. Thanks
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Old 7th November 2009, 01:52 AM   #1503
iko is offline iko  Canada
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The simplistic Salas low voltage shunt regulator
Quote:
Originally Posted by Tham View Post
Salas/Iko, one of my 24v v1.5 shunt powering a dac failed last night ...both Mosfets are cold. Vin is 36v and Vout is 33v.

Any suggestion where I should start troubleshooting?
What salas said is most likely.

Can you measure the voltage at a few points and post it? Refer to the schematic that you used.
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Old 7th November 2009, 02:24 AM   #1504
Melon Head is offline Melon Head  Australia
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Originally Posted by stormsonic View Post
motor run cap (big cap, too much inductance).
.
I didn't think polypropylene film capacitors had a lot of inductance.
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Old 7th November 2009, 09:33 AM   #1505
nicoch58 is offline nicoch58  Europe
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Thanh I hope ,as I want use , but big size= induttance.....
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Old 17th November 2009, 01:47 AM   #1506
quanghao is offline quanghao  Viet Nam
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The Salas low shunt is very wonderful. I use for DAC , It is ver good!
you can see in board
! thank Salas!
Attached Images
File Type: jpg Salas-Shunt-low-T.jpg (290.1 KB, 1881 views)
File Type: jpg Salas-low-B.jpg (202.2 KB, 1715 views)
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Old 17th November 2009, 01:55 AM   #1507
quanghao is offline quanghao  Viet Nam
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And finis
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File Type: jpg DAC-END-and-Salas-shunt-low.jpg (381.1 KB, 1699 views)
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Old 17th November 2009, 02:05 AM   #1508
iko is offline iko  Canada
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The simplistic Salas low voltage shunt regulator
Looks nice!
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Old 17th November 2009, 02:13 AM   #1509
quanghao is offline quanghao  Viet Nam
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Originally Posted by ikoflexer View Post
Looks nice!
I gift to you one board, You can sent for mee your Adress, and information!
thank!
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Old 17th November 2009, 09:27 AM   #1510
Melon Head is offline Melon Head  Australia
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OK I am definitely interested in those boards.
How about a group buy
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